Siemens SIMATIC ET 200SP System Manual

Commissioning
11.6 Operating modes of the CPU
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
211
The table below shows the effects of the operating mode transitions:
Table 11- 7 Operating mode transitions
No.
Operating mode transitions
Effects
①
POWER ON →
STARTUP
After switching on, the CPU switches to
"STARTUP" mode if:
• The hardware configuration and
program blocks are consistent.
• Startup type "Warm restart - RUN" is
set.
Or
• Startup type "Warm restart - mode
before POWER OFF" is set and the
CPU was in RUN mode before
POWER OFF.
The CPU clears the non-retentive memory, and re-
sets the content of non-retentive DBs to the start
values of the load memory. Retentive memory and
retentive DB contents are retained.
The 500 newest entries in the diagnostics buffer are
retained.
②
POWER ON →
STOP
After switching on, the CPU goes to
"STOP" mode if:
• The hardware configuration and
program blocks are inconsistent.
Or
• The "No restart" startup type is set.
Or
• Startup type "Warm restart - mode
before POWER OFF" is set and the
CPU was in STOP mode before
POWER OFF.
The CPU clears the non-retentive memory, and re-
sets the content of non-retentive DBs to the start
values of the load memory. Retentive memory and
retentive DB contents are retained.
The 500 newest entries in the diagnostics buffer are
retained.

Siemens SIMATIC ET 200SP Specifications

General

System Type	Distributed I/O System
Mounting	DIN Rail
Communication Protocol	PROFINET, PROFIBUS
IP Rating	IP20
Category	I/O Systems
Supply Voltage	24 V DC
Modularity	Yes
Hot Swapping	Yes
Storage Temperature	-40°C to +70°C
Digital Inputs	Yes
Digital Outputs	Yes
Analog Inputs	Yes
Analog Outputs	Yes
Communication Interface	PROFINET, PROFIBUS
Number of Modules	Up to 64
Relative Humidity	5 to 95% (non-condensing)
Operating Temperature	-25°C to +60°C